Here are a few search engines other then GOOGLE or YAHOO to try.

s3.pnghttp://clusty.com/



http://www.answers.com/

http://live.grokker.com/

http://www.exalead.com/search/

Or, Find 100s of more at this site:
http://www.go2web20.net/#search+tag:engine

THE INVISIBLE WEB.
Here are two cutting edge links to do searches on. These links will fine searches for information that isn't tagged by normal Google, Yahoo, or the other above searches.

s1.pngDirect Search is a growing compilation of links to the search interfaces of resources that contain data not easily or entirely searchable/accessible from general search tools like Alta Vista, Google, or Hotbot. Although these "general" tools are essential for the retrieval of Internet based data, searchers often fail to realize that a massive amount of information is not easily or entirely searchable/accessible via these search tools. Material "hidden" from the general search tools is said to reside on the Invisible Web.

s2.pngCompletePlanet
is a comprehensive listing of dynamic searchable databases. Find databases with highly relevant documents that cannot be crawled or indexed by surface web search engines.